Hi can someone pleaseeeee help me Answer this. Please try and answer it on paper, thank you.

2:22 AM Tue Dec 3 16% c30_m8_106_assignment 2 Done The official qestions are questions #1- #5 in this assignment, D6. If you feel difficulty to complete them, please study questions #6 - #9. They are examples with detailed answers. 1. When 2.12 grams of benzoic acid, HC H,CO, (aq), is dissolved in 1.2 L of water, the pH is found to be 2.75. Calculate the experimental K for benzoic acid. (6 marks) Answer: ICE Table [ HC H,CO, (aq)] H,O(1) [ C H,CO2 (aq)] [H,0*(aq)] Mol/L Mol/L Mol/L E2:22 AM Tue Dec 3 16% c30_m8_106_assignment 2 Done 2. If the pH of a 0.139 mol/L HX solution is 2.00, what is the equilibrium constant of the acid? (6 marks) Answer ICE Table [ HX (aq)] H,o(1) [ X (aq)]|[H,O*(aq)] Mol/L Mol/L Mol/L2:23 AM Tue Dec 3 16% c30_m8_106_assignment 2 ~ Done 3. Calculate [H,O ] and the pH of a 1.5 x10" mol/L solution of HCL (aq). (6 marks) ICE Table [ HCI (aq)] H,o(1) [ Cl(aq)] [H,0*(aq)] Mol/L Mol/L Mol/L\f2:23 AM Tue Dec 3 16% c30_m8_106_assignment 2 Done 5. Determine the pH of 0.10 mol/L solution of aqueous sodium bicarbonate? (6 marks) Answer ICE Table [ HCO, (aq)] H,O(1) [ H,CO, (aq)] [OH (aq)] Mol/L Mol/L Mol/L F